题目内容：

    Sonya took Rupert, a rescue dog, back home three years ago, and soon found it liked attacking strangers and other animals, which she believed was caused by pain.

It took Sonya a year to develop a normal relationship with Rupert, during which she learned it was afraid of being left alone and also couldn't walk properly. Finally, she decided to take it to see a vet (兽医). After examining Rupert, the vet said its leg was broken, and it needed an immediate operation.

But when it had to go in for an operation on its leg, there was a problem - the vet Mike couldn't get near the dog. Mike and Sonya were left scratching (抓)their heads until one of them came up with an idea. Sonya said Rupert slept on a mouse suit so she suggested that Mike put it on.

At first, the dog barked (吠叫) wildly when Mike tried to operate on it in usual clothes. To make his patient feel at ease, Mike decided to dress up in the mouse clothes to see if it would be less worried. Amazingly, it worked. It stopped barking and immediately became good friends with Mike when he put on the suit. As a result, he was able to perform an operation on the leg safely and the result was quite satisfying.

After the successful operation, Mike hugged the dog around the neck, which isn't usually well - received by pets. Mike tried to be as respectful of its needs as possible and made time to give some attention. What Mike had done created a special experience or event in the dog's life.

1.What do we know about Rupert?

A.It was often left alone at home. B.It was hard to get on with at first.

C.Its leg broke after it was saved by Sonya. D.Its violence was caused by its rescue job.

2.Why did Mike and Sonya scratch their heads?

A.They couldn't find a mouse suit.

B.They had great pain in their heads.

C.They didn't know how to calm the dog down.

D.They didn't find the cause of Rupert's pain.

3.Why did Rupert stop barking?

A.It saw Sonya. B.It didn't feel pain.

C.It saw the mouse suit. D.It was hugged by Mike.

4.What's the story mainly about?

A.A vet saved a dog from dying.

B.Sonya saved an injured dog.

C.Sonya took an injured dog home.

D.A vet wore a mouse suit to operate on a dog.